Drive for operating a punching tool

Details Drive for operating a punching tool Drive for operating a punching tool

1977-11-17

1980-06-24

Scott, Samuel

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

F16H 2118

Patent

active

042089247

ABSTRACT:
A drive for operating a punching tool comprises a toggle-joint lever to one of whose lever members the punching tool is operatively connected. The second lever member of the toggle-joint forms part of a quadrilateral linkage. This linkage consists of the second lever member, a first transverse lever member linked at one end to the second lever member and at the other end to another lever element, and a second transverse lever member linked at one end to the other lever element. The first transverse lever member is a two-armed lever supported on a fixed pivot near its linkage to the second lever member for pivoting the two-armed lever about the fixed pivot. The second transverse lever member and the other lever element are linked to a crank drive.

REFERENCES:
patent: 883024 (1908-03-01), Humpert
patent: 934690 (1909-09-01), Nissen
patent: 3822603 (1974-07-01), Morita et al.

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